Choosing a Good Camera Cameras come with many options, and it appears that the more...

Choosing a Good Camera Cameras come with many options, and it appears that the more that you want, the higher the cost of the camera Consumer Reports has rated n = 20 cameras on qualities that we consumers are looking for. Variables that may relate to the cost of a camera are given in the following table where y = overall customer score, = battery life (shots).

The MINITAB printout below shows the regression of y on the predictor variables .

a. Write a multiple regression model using each of the x-variables as independent variables and y as the response variable.

b. Comment on the fit of the model using the statistical test for the overall fit and the coefficient of determination, .

c. If you were to refit the model, eliminating one of the predictor variables, which one would you choose? Why?